Tiny hominids could walk but not run.
Long thought irreplaceable, human heart cells actually can regrow.
A genetic study shows the surprising influence of the pineal gland on our 24-hour body cycles.
Scientists create stem cells that are safer to use in research.
A new date for an old fossil hints that Homo erectus was resilient in colder climates.
Biologists have learned that childhood abuse can leave a lasting mark on brain function.
Gene copying mistakes may have prodded the evolution of gorillas, chimps, and humans.
The germs that live inside us have evolved with us -- and tell a story of early human migrations.
Can you both learn something new and recall something old at the same moment?
A fresh look at the human fossils on Flores Island hints at their evolutionary history.